| Japanese |
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| Title | 201Tl同心円表示のサブトラクション法の試み (第1報) - 視覚的判定との対比検討 - |
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| Subtitle | 原著 |
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| Authors | 進藤真*, 玉木長良*, 高橋範雄*, 大谷弘*, 米倉義晴*, 小西淳二*, 野原隆司**, 神原啓文**, 河合忠一**, 吉岡克則***, 寺岡悟見*** |
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| Authors(kana) | |
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| Organization | *京都大学医学部放射線核医学科, **第三内科, ***横河メディカルシステム |
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| Journal | 核医学 |
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| Volume | 28 |
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| Number | 6 |
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| Page | 609-615 |
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| Year/Month | 1991/6 |
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| Article | 原著 |
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| Publisher | 日本核医学会 |
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| Abstract | 「要旨」運動負荷201Tl心筋SPECT上のTl分布の変化を定量的に描出するため同心円サブトラクション (BS) マップを作成した. 正常例10例と虚血性心疾患例33例 (計215区域) につき, 本法を利用し, BSマップ上の再分布の程度とSPECT上の視覚判定と対比検討した. 正常例では全50区域がBSマップ上15%未満であった. 虚血性心疾患では固定性欠損27区域のうち20区域 (74%) が10%未満, 6区域 (22%) が10〜15%であった. 完全ないし不完全再分布と判定された34区域のうち25区域 (74%) が15ないし20%以上を示し, 残りの9区域はすべて10%以上であった. BSマップとSPECT上の視覚的判定法との一致率は高く, BSマップ上10ないし15%をもって再分布の有無の判定が可能と思われた. 本法は運動負荷Tl心筋SPECT上の再分布の程度を定量的に解析できる手法として有用と考えられた. |
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| Practice | 臨床医学：一般 |
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| Keywords | Emission computed tomography, Thallium-201, Ischemic heart disease, Redistribution, Bull's eye map. |
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| English |
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| Title | A Bull's Eye Subtraction Polar Map for Assessing Thallium Redistribution (1) Comparison with Quantitative Redistribution |
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| Subtitle | Original Articles |
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| Authors | Makoto SHINDO*, Nagara TAMAKI*, Norio TAKAHASHI*, Hiroshi OHTANI*, Yoshiharu YONEKURA*, Junji, KONISHI*, Ryuji NOHARA**, Hirofumi KAMBARA**, Chuichi KAWAI**, Katsunori YOSHIOKA***, Satomi TERAOKA*** |
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| Authors(kana) | |
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| Organization | *Department of Radiology and Nuclear Medicine, **The Third Division, Department of Internal Medicine, Kyoto University Faculty of Medicine, ***Yokogawa Medical System |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 28 |
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| Number | 6 |
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| Page | 609-615 |
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| Year/Month | 1991/6 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] A new bull's eye subtraction polar (BS) map has been developed for quantitative assessment of redistribution on stress-delayed thallium-201 SPECT studies. BS map was created after subtraction of a normalized stress bull's eye polar map from a normalized delayed polar map in 10 normal subjects and 33 patients with coronary artery disease to compare BS map with qualitative redistribution scores. The BS map showed < 15% in all of the 50 segments in the normal subjects. Of 27 segments exhibiting persistent defect without redistribution, the BS map showed < 10% in 20 segments (74%) and 10 - 15% in 6 segments (22%). On the other hand, of 34 segments exhibiting redistribution, the BS map showed >= 15% in 25 segments (74%) and 10 - 15% in the remaining 9 segments (26%). Thus, significant redistribution was evident in the areas showing >= 10 - 15% on the BS map. We conclude that the BS map is valuable for quantitative assessment of redistribution on stress-delayed thallium-201 SPECT imaging. |
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| Practice | Clinical medicine |
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| Keywords | Emission computed tomography, Thallium-201, Ischemic heart disease, Redistribution, Bull's eye map. |
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